Renamed characters getting truncated

[mirmir]

Hi! I'm trying to rename some observations in my school_name variable. Currently, the school names look like this:

I want to rename them to look like this: 

In the data step, my code looks like this: 

length school_name $ 30;
	
if school_name = "Washington Elem" then School_Name = "Washington Elementary School";
if school_name = "Lin coln School" then School_Name = "Lincoln Elementary School";
if school_name = "Adams Elem" then School_Name = "Adams Elementary School";
if school_name = "Jackson" then School_Name = "Jackson Elementary School";

However, after renaming, it looks like this: 

Why do they get truncated? I added that line 

length school_name $ 30;

in the hopes of the names not being truncated, but it didn't change anything.

[novinosrin · Accepted solution]

try 

length school_name $ 30;

before set statement 

[novinosrin]

data have;
input school_name= $16. ;
school_name=dequote(school_name);
cards;
school_name = "Washington Elem"
school_name = "Lin coln School"
school_name = "Adams Elem" 
school_name = "Jackson"
;
data want;
length school_name $ 30;
set have;
if school_name = "Washington Elem" then School_Name = "Washington Elementary School";
if school_name = "Lin coln School" then School_Name = "Lincoln Elementary School";
if school_name = "Adams Elem" then School_Name = "Adams Elementary School";
if school_name = "Jackson" then School_Name = "Jackson Elementary School";
run;